| Irthlingborough to Arcore | 644.27 mi (1,036.85 km) |
| Irthlingborough to Ardea | 962.61 mi (1,549.17 km) |
| Irthlingborough to Arenzano | 692.72 mi (1,114.83 km) |
| Irthlingborough to Arese | 640.89 mi (1,031.40 km) |
| Irthlingborough to Arezzo | 840.17 mi (1,352.13 km) |
| Irthlingborough to Argelato | 764.41 mi (1,230.20 km) |
| Irthlingborough to Argenta | 778.29 mi (1,252.54 km) |
| Irthlingborough to Ariano Irpino | 1,067.29 mi (1,717.64 km) |
| Irthlingborough to Ariccia | 960.49 mi (1,545.76 km) |
| Irthlingborough to Arluno | 639.46 mi (1,029.12 km) |
| Irthlingborough to Arona | 614.31 mi (988.64 km) |
| Irthlingborough to Artena | 967.14 mi (1,556.46 km) |
| Irthlingborough to Arzachena | 907.81 mi (1,460.98 km) |
| Irthlingborough to Arzano | 1,054.14 mi (1,696.47 km) |
| Irthlingborough to Arzignano | 716.33 mi (1,152.82 km) |
